Established over 90 years ago in Nidau, Switzerland, ALPHA Elektrotechnik AG is a company steeped in tradition. Starting out in the power transmission business selling disconnectors for medium- and high-voltage networks, ALPHA also has a separate business unit – “cable solutions”– for the transfer of energy in medium voltage systems of modern railways.

In 1999, ALPHA Elektrotechnik AG started to develop and produce medium-voltage assemblies for railways (traction) from 3 kV to 25 kV. Thanks to its high level of quality and flexibility, ALPHA has an important number of international references in the railway sector.

The heart of the transmission process is the partially insulated or fully insulated pluggable jumper. Jumpers are car2car connections to ensure the distribution of energy between rail cars, particularly on commuter trains and high-speed trains. ALPHA masters one of the principal difficulties, which consists in reconciling flexibility and resistance in order to make it possible that the cable supports millions of torsion movements, resonance extreme climatic conditions. We guarantee a high quality standard on a long life time of the cable documented with different internal tests. In addition we offer different services as customer specific engineering, installation and training on site, repair work etc.

We manufacture both ends of the cable according to the customer’s requirements. In line with the concept of providing tailored solutions, we offer a range of cable cross sections regardless of the chosen type of cable termination or connector. All products meet the relevant railway standards and the applicable fire protection standard DIN EN 45545-2.

Products & Services

Product Overview Traction
Cable Termination (Silicone-based options)
Car to car connections (Fully and partially insulated)
Portable PD Test System & Accessories